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type IV pili

  • Open Access
    Discovery of a New <span class="named-content genus-species" id="named-content-1">Neisseria gonorrhoeae</span> Type IV Pilus Assembly Factor, TfpC
    Editor's Pick Research Article | Molecular Biology and Physiology
    Discovery of a New Neisseria gonorrhoeae Type IV Pilus Assembly Factor, TfpC

    Most bacterial species express one or more extracellular organelles called pili/fimbriae that are required for many properties of each bacterial cell. The Neisseria gonorrhoeae type IV pilus is a major virulence and colonization factor for the sexually transmitted infection gonorrhea. We have discovered a new protein of...

    Linda I. Hu, Shaohui Yin, Egon A. Ozer, Lee Sewell, Saima Rehman, James A. Garnett, H Steven Seifert
  • Open Access
    Ancestral Reconstructions Decipher Major Adaptations of Ammonia-Oxidizing Archaea upon Radiation into Moderate Terrestrial and Marine Environments
    Research Article | Ecological and Evolutionary Science
    Ancestral Reconstructions Decipher Major Adaptations of Ammonia-Oxidizing Archaea upon Radiation into Moderate Terrestrial and Marine Environments

    Unlike all other archaeal lineages, ammonia-oxidizing archaea (AOA) of the phylum Thaumarchaeota are widespread and abundant in all moderate and oxic environments on Earth. The evolutionary adaptations that led to such unprecedented ecological success of a microbial clade characterized by highly conserved energy and carbon metabolisms have, however, remained...

    Sophie S. Abby, Melina Kerou, Christa Schleper
  • Open Access
    Species-Specific Recognition of <em>Sulfolobales</em> Mediated by UV-Inducible Pili and S-Layer Glycosylation Patterns
    Research Article | Molecular Biology and Physiology
    Species-Specific Recognition of Sulfolobales Mediated by UV-Inducible Pili and S-Layer Glycosylation Patterns

    Type IV pili can be found on the cell surface of many archaea and bacteria where they play important roles in different processes. The UV-inducible pili system of Sulfolobales (Ups) pili from the crenarchaeal Sulfolobales species are essential in establishing species-specific mating partners, thereby assisting in genome stability. With this work, we show that different Sulfolobus species have specific regions...

    Marleen van Wolferen, Asif Shajahan, Kristina Heinrich, Susanne Brenzinger, Ian M. Black, Alexander Wagner, Ariane Briegel, Parastoo Azadi, Sonja-Verena Albers
  • Open Access
    Bottom-Up Fabrication of Protein Nanowires via Controlled Self-Assembly of Recombinant <em>Geobacter</em> Pilins
    Editor's Pick Research Article | Applied and Environmental Science
    Bottom-Up Fabrication of Protein Nanowires via Controlled Self-Assembly of Recombinant Geobacter Pilins

    The discovery in 2005 of conductive protein appendages (pili) in the metal-reducing bacterium Geobacter sulfurreducens challenged our understanding of biological electron transfer and pioneered studies in electromicrobiology that revealed the electronic basis of many microbial metabolisms and interactions. The protein nature of the pili afforded opportunities for...

    K. M. Cosert, Angelines Castro-Forero, Rebecca J. Steidl, Robert M. Worden, G. Reguera
  • Open Access
    Tad Pili Play a Dynamic Role in <span class="named-content genus-species" id="named-content-1">Caulobacter crescentus</span> Surface Colonization
    Research Article | Molecular Biology and Physiology
    Tad Pili Play a Dynamic Role in Caulobacter crescentus Surface Colonization

    Bacteria are able to colonize surfaces in environmental, industrial, and medical settings, where they form resilient communities called biofilms. In order to control bacterial surface colonization, microbiologists need to gain a detailed understanding of the processes that bacteria use to live at the liquid-surface interface and that allow them to adhere to and move on surfaces and eventually grow and persist on solid media. To...

    Matteo Sangermani, Isabelle Hug, Nora Sauter, Thomas Pfohl, Urs Jenal
  • Open Access
    Research Article
    The Pseudomonas aeruginosa PilSR Two-Component System Regulates Both Twitching and Swimming Motilities
    Sara L. N. Kilmury, Lori L. Burrows
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